Back to EveryPatent.com
United States Patent | 5,304,761 |
Rosen ,   et al. | April 19, 1994 |
An industrial rate multi-phase molded case circuit breaker is fitted with an exhaust gas barrier and line lug cover at the line end thereof to redirect the arc exhaust gases exiting from the line end. An electric circuit is prevented between the different phases of a multi-phase electric power distribution system connected with the line end of the circuit breaker. Furthermore, an electric circuit is further prevented between the exiting arc exhaust gases and the electrical distribution bus bars to which the multi-phase electric circuit breaker is connected.
Inventors: | Rosen; Louis A. (Hartford, CT); Webber; Timothy W. (Bristol, CT); Frutuoso; Louis M. (Newington, CT) |
Assignee: | General Electric Company (New York, NY) |
Appl. No.: | 836573 |
Filed: | February 18, 1992 |
Current U.S. Class: | 218/157; 200/304; 335/202 |
Intern'l Class: | H01H 009/30; H01H 033/00 |
Field of Search: | 200/144 R-151,304-306 361/345-363 335/201,202 |
3198915 | Aug., 1965 | Wortmann | 200/144. |
3295078 | Dec., 1966 | Hrynewycz | 335/124. |
3451019 | Jun., 1969 | Auer et al. | 335/201. |
3578928 | May., 1971 | Schuessler et al. | 200/144. |
4181836 | Jan., 1980 | Miracle | 200/144. |
4744003 | May., 1988 | Koslosky et al. | 361/363. |
4754247 | Jun., 1988 | Raymont et al. | 335/202. |
4928080 | May., 1990 | Jacobs et al. | 335/202. |
4957447 | Sep., 1990 | Hibbert et al. | 439/207. |
4965544 | Oct., 1990 | Kelaita, Jr. et al. | 335/202. |
4970482 | Nov., 1990 | Jacobs et al. | 335/201. |
5067043 | Nov., 1991 | Markowski et al. | 361/361. |